.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}

/* Match Highlighter */
.CodeMirror-focused .cm-matchhighlight {
    background-image: url();
    background-position: bottom;
    background-repeat: repeat-x;
}
.cm-matchhighlight {background-color: coral}
.CodeMirror-selection-highlight-scrollbar {background-color: green}